1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed83690baa6e18f25f7ab19643b65ba1de58e3f34a452bf9ba3803749d8ce51. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2c138cc9-4ab3-4508-915a-e2d8777f4813.json and https://artists.proofprofile.net/proofs/artist/2c138cc9-4ab3-4508-915a-e2d8777f4813.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
My Feet Trample the Silent Stones and Leaves
{"copyright_id":"0xedb53a99cc37201f36d71ebb903cf71f46422d3f4c8c7641df1e12d16e36adbd","isrc":"DEQ022111958","name":"All in blues","registered_at":"2026-06-07T20:59:20Z","spotify_id":"7t19TRzMGghcGNHoaIxIMw","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb53a99cc37201f36d71ebb903cf71f46422d3f4c8c7641df1e12d16e36adbd. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7t19TRzMGghcGNHoaIxIMw.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7t19TRzMGghcGNHoaIxIMw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10bc71dcfa5ecea06b765327bd4a35d834c145b9d76691cd886a8e878e0f4e39. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2T6WXP8JYho3407VP4jcZk.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2T6WXP8JYho3407VP4jcZk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ca02398e86e855e24b9630d7baa7f9ee5fbe3cd17d765e4945d0e590aafe71. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/072WsYDD42V1670xuycauf.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/072WsYDD42V1670xuycauf.
MTV Unplugged Kahedi Radio Show (Deluxe Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4872fe50578af274935ded9e76bb7b9a35009d5abbb59d78e9130b457f39418c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4ngMXM944ubJuYImkzK3Mf.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4ngMXM944ubJuYImkzK3Mf.
{"copyright_id":"0xced34cc188c7a5ab18285541ada7e156e107419e0131c52638ea77589c46407d","isrc":"DEUM71304016","name":"Wenn der Vorhang fällt","registered_at":"2026-06-09T17:27:47Z","spotify_id":"1IkMnJt3YaFjhIwLAZLjka","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced34cc188c7a5ab18285541ada7e156e107419e0131c52638ea77589c46407d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1IkMnJt3YaFjhIwLAZLjka.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1IkMnJt3YaFjhIwLAZLjka.
{"copyright_id":"0xe8ca8675355c182293f3cebc08899cffbedd031f55109f2f12821ad4cf31570a","isrc":"DEUM71304446","name":"Wenn der Vorhang fällt","registered_at":"2026-06-25T08:22:00Z","spotify_id":"5CQuQszQLRJ8TYbwWjcm8d","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8ca8675355c182293f3cebc08899cffbedd031f55109f2f12821ad4cf31570a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5CQuQszQLRJ8TYbwWjcm8d.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5CQuQszQLRJ8TYbwWjcm8d.
{"copyright_id":"0x53600c68f4dd2f94c1a5683dd2a6011c1b40a6dfbbef8861c743cc0edc354f89","isrc":"DEE860000384","name":"Tabula Rasa Pt. II - Live","registered_at":"2026-06-24T06:11:15Z","spotify_id":"3bNkpH2wdZo1xdToDBFWJq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53600c68f4dd2f94c1a5683dd2a6011c1b40a6dfbbef8861c743cc0edc354f89. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3bNkpH2wdZo1xdToDBFWJq.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3bNkpH2wdZo1xdToDBFWJq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7035b93c0860f38be7f6abb5c00d8db3607aa8cdcc4317e93a33560b778073aa. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3j3HXvmdqsGg4a6BUNw9Pk.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3j3HXvmdqsGg4a6BUNw9Pk.
{"copyright_id":"0xfa6bdc9cfd64a298d0cee2c2ff94cbfde10917e3ae5fa456a903aa7a7a52354d","isrc":"DEE869900356","name":"Esperanto (feat. Deborah)","registered_at":"2026-06-04T12:22:45Z","spotify_id":"696VIHNs5IIil4WDvyYVG5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6bdc9cfd64a298d0cee2c2ff94cbfde10917e3ae5fa456a903aa7a7a52354d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/696VIHNs5IIil4WDvyYVG5.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/696VIHNs5IIil4WDvyYVG5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa99b852e0e15b45441807cbd5ec855d56f157c51f087055ede12b17fe910286c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1TBeNMLEWfq2aACB2UPcJk.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1TBeNMLEWfq2aACB2UPcJk.
{"copyright_id":"0x15d841b70a6b9a6ab881886f0a040b55bb0126e56cc1dbb883dc34ffe8b6ae82","isrc":"DEE869900358","name":"Erste Schritte / Retrospektive","registered_at":"2026-06-08T11:22:58Z","spotify_id":"7rSN9ieYp5HGw8LkVj7og2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d841b70a6b9a6ab881886f0a040b55bb0126e56cc1dbb883dc34ffe8b6ae82. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7rSN9ieYp5HGw8LkVj7og2.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7rSN9ieYp5HGw8LkVj7og2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2a581ab989b9147aa9890f6ca3e60247ffaf48ca7295c311d80c29b2eeaa2e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6m32jIN2CkrsmxcGXllX8p.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6m32jIN2CkrsmxcGXllX8p.
{"copyright_id":"0xc85efe7a7383ce90e3655e799eedcf79597118f829f6f370efc80df07930cb30","isrc":"DEE869900360","name":"Tabula Rasa Pt. II","registered_at":"2026-06-06T03:33:16Z","spotify_id":"4GwyjqzIPidkbWdyzkCWT5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc85efe7a7383ce90e3655e799eedcf79597118f829f6f370efc80df07930cb30. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4GwyjqzIPidkbWdyzkCWT5.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4GwyjqzIPidkbWdyzkCWT5.
Sternstunde (oder die Revolution der Bärte) (feat. Mighty Tolga)
{"copyright_id":"0xa4266d00d2cea6e77453a9815e966fdb6d4cadedfa0ce2db246a9932c9da5669","isrc":"DEE869900362","name":"Sternstunde (oder die Revolution der Bärte) (feat. Mighty Tolga)","registered_at":"2026-06-17T22:22:28Z","spotify_id":"5xwU0vQiBoB0JqhDQuoxwa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4266d00d2cea6e77453a9815e966fdb6d4cadedfa0ce2db246a9932c9da5669. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5xwU0vQiBoB0JqhDQuoxwa.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5xwU0vQiBoB0JqhDQuoxwa.
{"copyright_id":"0xd8a047abeef6752708f99b73e48fafac980fee023c9d57872983e002b516e86b","isrc":"DEE869900363","name":"Briefwechsel / Letter Exchange","registered_at":"2026-06-17T22:22:02Z","spotify_id":"1v1EoKeCLqU6nIrdDSpSXQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a047abeef6752708f99b73e48fafac980fee023c9d57872983e002b516e86b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1v1EoKeCLqU6nIrdDSpSXQ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1v1EoKeCLqU6nIrdDSpSXQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97bbd5482c663626cfafbea4e7da4bc214a81b0ccc94f502f62965d2223d197f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/57PA1hEeV1JZYxNVLr8MTD.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/57PA1hEeV1JZYxNVLr8MTD.
{"copyright_id":"0x51afea83d3afdc55133fbcc285b985cd4b788aa89c24a9d3cd84cf840b1ebab0","isrc":"DEE869900365","name":"Mit Dir","registered_at":"2026-06-04T09:58:41Z","spotify_id":"5EX0HiIyvhavnpjgbwDCeL","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51afea83d3afdc55133fbcc285b985cd4b788aa89c24a9d3cd84cf840b1ebab0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5EX0HiIyvhavnpjgbwDCeL.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5EX0HiIyvhavnpjgbwDCeL.
All Apologies (feat. Sékou The Ambassador)
{"copyright_id":"0x6b2b4c616cdbaf0ce3868493da8a1891ce6a5b4a6e733e1dce7149bde35cd47a","isrc":"DEE869900366","name":"All Apologies (feat. Sékou The Ambassador)","registered_at":"2026-06-18T14:25:54Z","spotify_id":"04QoQ623lcg91SflsUqBYM","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2b4c616cdbaf0ce3868493da8a1891ce6a5b4a6e733e1dce7149bde35cd47a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/04QoQ623lcg91SflsUqBYM.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/04QoQ623lcg91SflsUqBYM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad265adcd9985002cf00ba482e08880294e99d782e5fc3830f0ac36a68eefcc. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1wVsOakYxWk2SeGx7MyppO.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1wVsOakYxWk2SeGx7MyppO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3783b12a1ae7281f38b516a900f955437fc3d4a8b920db842ed06d3f49c7c332. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/64jYKpHYZMsbjNZ8UfBRfz.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/64jYKpHYZMsbjNZ8UfBRfz.